/**
 *    Copyright 2009-2020 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
/**
 * Base package for Datasources.
 */
/*xxx: 基础支撑层  数据源*/
/*xxx: 数据源的性能，直接关系到 整个数据持久层的性能*/
/*xxx: 常见的第三方数据源组件有 : dbcp,c3p0,proxool*/
/*xxx: mybatis 既可以继承第三方数据源组件，也提供了自己的数据源实现*/
package org.apache.ibatis.datasource;
